... and rock stability and the hydromechanical properties are subject to the width and the roughness of the rock joint. (Witherpoon et al. 1980) and Taihua Yang et al. found that the flow quantity has a cubic law with the fracture width, and has a direct ratio with the roughness of the joint. The deformation...

... of stone surface treatment in order to improve the aesthetic appearance of the surface of the marble slab or tile or to increase the roughness. A new concept, water jet treatment, currently used by the sector and have more popularity than traditional methods. Water jet technology enables to obtain...

... mechanism macro wave creep shear compressive shear rock hydraulic fracturing Chinese Journal tensile fractured rock fractured surface shear strength structural geology creep failure mechanics roughness shear failure asperity fractured rock surface Rock Characterisation, Modelling...

... Abstract Non-Newtonian fluids are common in drilling and oil production. Examples include drilling fluids, heavy oils and fluids used in hydraulic fracturing. A review of the state of the art indicates that our current knowledge of non-Newtonian fluid flow in rough-walled fractures...

..., aperture and roughness, in the largest underground oil storage caverns in China. Based on the geometry relationship between inclined borehole and joints, the dip angle and dip direction has been identified by 3 points' depth and orientation, and the real aperture has been figured out by depth...

..., Newland & Allely 1957). The shear strength models have taken into account joint surface roughness, an angle of asperities, an effect of normal stress acting on a joint on dilatancy, and infill materials, resulting in a large difference from the peak shear strength derived from Mohr-Coulomb criterion...

... Abstract Most of the discontinuities and joints do not have smooth surfaces and they are covered with random distributed roughness. Finding the effective role of surface roughness on the behavior of discontinuities and on the shear strength of joints makes roughness measurement an important...

... ABSTRACT Numerical simulation of joint in rock mass is always a research focus. For simplification, most studies treat joint as a smooth one, while the real joint in nature is rough. At present, few numerical simulations focus on the rough joint, and there are few studies about hydraulic...